Wrench.



J. H. & R. G. BROWN.

WRENCH. I ABBLICATION IILE) AUG. 3, 1912.

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J. H. 6v R. C. BROWN. WRENCH. APPLIGATION FILED AUG, 3, 1912.

Patented May 20, 1913;

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JAMEs rr. BEOWNAND ROBERT o. BROWN, on oUDnY, PENNSYLVANIA.

WRENCH.

Specification of Letters Patent.

Patented May 20, 1913.

Application filed August 3, 1912. n Serial No. 713,180.

To all whom @'15 may concern and ROBERT C. BROWN, citizens of the UnitedStates, residing at Guddy, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful llmprovements inVrenches, of which the following is a specification.

This invention relates to improvements in wrenches and has for its object to provide a quick acting wrench having means whereby a looselysliding j aw may be instantly locked in fixed position.

Another object of the invention is to provide a wrench having a pivotedlocking lever so constructed as to relieve its pivot member from allstrain.

With the above and other objects in view, we have invented the wrenchillustrated in the accompanying drawings, in which Figure 1 is a sideelevation of our improved wrench, Fig. 2 is a view similar to Fig. 1with a casing member broken away, Fig. 3 is an elevational view with thecasing and handle broken away and the lever removed, Fig. l is anedgewise elevational view, Fig. 5 is an opposing edgewise view with thehandle broken away, Fig. 6 is a detail view of a lever member with oneend broken off, Fig. 7 is a transverse sectional view taken on line C-Cof Fig. t with the member 6 removed, Fig.` 8 is a detail sectional viewof a sliding jaw, and Fig. 9 is a section on line B-B of Fig. 6.

Like reference characters vindicate like parts in the followingspecification and in the several views in the drawings in which 1indicates a handle having a fixed jaw 2, on one of its ends. with anoutstanding arcuate lug 3 and an arcuate recess 4 adjacent said lug toreceive an arcuate lug 5 in a lever member 6 which is also provided withan arcuate recess 7 adjacent said lug 5 to receive the lug 3 on saidhandle 1 whereby the lugs 3 and 5 seating in the recesses 4 and 7 form ahinge and fulcrumfor the lever 6. A bolt 8 connects the members 6 and ltogether, but all strain which might be brought to bear by the operationof the wrench is relieved from said bolt by the formation of said lugsand their sockets as described.. Y

Mounted slidably on the handle'l is a jaw 9 which has one of its wallsprovided with teeth 10 which are adapted to be engaged by the teeth 11on the lever 6. Mounted on Said handle is providedv each side of thehandle near its jaw end are Be it known that we, JAMES H. BROWNv members12 and 13 which form bearings for the bolt 8 and also form a trough withsaid handle 1 to receive the toothed end of said lever 6, said membersor-walls being of a sufficient width to permit the teeth to drop belowthe surface of their edges, said edges being adapt-ed to hold said teeth10 in said sliding jaw out of engagement with said teeth 11 whenthetoothed portion 16 of said lever falls inwardly of said edges,whereby said sliding jaw may be freely moved for adjustment. Seatedbetween the handle 1 and the portion 16 is a spring 17 which is adaptedto hold the portion 16 normally in engagement with said sliding jaw, butby forcing the free ends 18 and 19 of said han p dle and lever apart thetension of the spring is overcome and the toothed portion separated.

Having now described our invention that which we claim to be new anddesire to procure by Letters Patent` is:

1. A wrench consisting of a handle having a fixed jaw thereon, memberson the opposing sides of said handle adapted to form a channel, a leverpivoted away from its outer end to said handle, said outer end beingtoothed, a jaw slidable on said members and engageable by said end.

2. A wrench consisting of a handle having a fixed jaw thereon, .memberson lthe opposing sides of said handle adapted to form a channel, a lever.pivoted away from its` outer endto said handle, said outer end beandengageable by said end, said end adapted to be raised above the surfaceof said channel to engage said movable jaw.

3. A wrench consisting of a handle formed o-f a shank and a lever, saidlever having its outer end toothed, said lever being pivoted to saidshank between said toothed portion and its inner, end, a xed jaw on saidshank and a toothed movable jaw straddling said shank and toothedportion of said lever.

4. A wrench consisting of a handle formed of a shank and a lever, saidlever having its outer end toothed, said lever being pivoted Vto saidshank between said toothed portion and its inner end, a fixed jaw onsaid vshank .ing toothed, al jaw slidable on said members and a toothedmovable jaw straddling said fixed jaw thereon, a slidable jaw having atoothed surface on said handle, a lever having a toothed surface adaptedto engage said slidable jaw, said handle and lever being pivotedtogether', means for relieving said pivot from strain, said meansconsisting of a lug on said handle and a recess in said lever to receivesaid lug, and a lug on said lever and a recess in said handle to receivesaid last-named lug.

6. Awrench consisting of a handle formed of a shank and a level', saidlever having its outer end toothed, said lever being pivoted to saidshank between said toothed portion and its inner end, a iXed jaw on saidshank,

a toothed movable jaw straddling said shank and toothed portion of saidlever, a recess in said shank, a lug on said lever adapted to seat insaid recess, a recess in said lever and a lug on said shank adapted toseat in said latter recess, said lugs being the ulcruin of said lever.

`In testimony whereof we affix our signatures in presence of twoWitnesses.

JAMES H. BROWN. ROBERT c. BROWN.

Vitnesses ALEX. J. VEDDERBURN, J r., XVM. MCC. HERRON.

Copies-of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents. Washington, D. C.

